Wright, Harry K.
The University of North Caroline Press, 1971
Buku Teks
edited by Amritlal B. Shah
Manaktalas, 1966
Buku Teks
Korany, Bahgat, author
Westview Press, 1984
Buku Teks
edited by A.B. Shah
Manaktalas, 1966
Buku Teks
edited by Anrudh Jain
Population Council, 1998
Buku Teks